ZIP codes in Brown County
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- 57401 AberdeenBrown County
- 57426 BarnardBrown County
- 57427 AberdeenBrown County
- 57432 LangfordBrown County
- 57433 ColumbiaBrown County
- 57439 FerneyBrown County
- 57441 FrederickBrown County
- 57445 GrotonBrown County
- 57446 HeclaBrown County
- 57449 ColumbiaBrown County
- 57460 MansfieldBrown County
- 57474 AberdeenBrown County
- 57479 WarnerBrown County
- 57481 FrederickBrown County